Located directly in the center of the island, the watchtower offers a 360 view of the island. This area is off-limited to regular students, usually only visited by students on Barrier Patrol and one or two Yosuzume who work in the tower on shifts.

A natural hot spring about a mile from the castle that is hidden by thick foliage. The hot springs are a place of rest, relaxation and meditation, as well as being a privilege for first rank students and their guests. It is gender segregated though there is one section of wall over which students can yell across pools.